Some varedit improvements

Fixed give spell window hiding most important part of the spell types
Added call proc to varedit so all things you can open in varedit you can
also call procs on

code/modules/admin/verbs/debug.dm

@@ -83,16 +83,13 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 		usr << "<font color='blue'>[procname] returned: [returnval ? returnval : "null"]</font>"
 		feedback_add_details("admin_verb","APC") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
 
-/client/proc/callproc_datum(var/atom/A as null|area|mob|obj|turf)
+/client/proc/callproc_datum(var/A as null|area|mob|obj|turf)
 	set category = "Debug"
 	set name = "Atom ProcCall"
 
 	if(!check_rights(R_DEBUG))
 		return
 
-	if(!istype(A))
-		return
-
 	var/procname = input("Proc name, eg: fake_blood","Proc:", null) as text|null
 	if(!procname)
 		return
@@ -101,7 +98,7 @@ But you can call procs that are of type /mob/living/carbon/human/proc/ for that
 	if(!lst)
 		return
 
-	if(!A || A.gc_destroyed)
+	if(!A || !IsValidSrc(A))
 		usr << "<span class='warning'>Error: callproc_datum(): owner of proc no longer exists.</span>"
 		return
 	if(!hascall(A,procname))